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        <li class="header">【前言】</li>
        
        
    
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                    介绍ABOUT
            
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        <li class="header">【第一章】Java基础</li>
        
        
    
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                    计算机基础-操作系统-进程-计算机网络
            
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                    线程池的工作原理
            
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                    Map&HashMap&HashTable&ConcurrentHashMap
            
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                    队列-queue
            
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                    Java序列化
            
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                    volatile&synchronized
            
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                    object/wait/notify
            
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                    thread
            
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                    线程池的工作原理
            
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                    lock&ReentrantLock&ReadWriteLock
            
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                    lock&condition
            
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                    Java并发工具- CountDownLatch&CyclicBarrier 
            
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                    Java同步工具类- CountDownLatch&CyclicBarrier&Semaphore  
            
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                    java虚拟机-JVM
            
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                    java8新语法-Stream-分组groupingBy操作 
            
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                    java8新语法-Optional 
            
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                    java8-新的日期时间API 
            
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                    Java bean转Map 
            
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                    算法题 - 合并排序数组 
            
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                    算法题 - 最低分数线问题 
            
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                    算法题 - 求数组的子集合 
            
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                    SpringBoot
            
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                    SpringSecurity
            
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                    SpringBoot项目启动脚本
            
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                    Spring面试题68
            
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                    SpringBoot自动装载机制 - 源码分析
            
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                    Feign在spring、springboot下使用
            
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                    Spring boot集成freemarker，生成word文件
            
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                    Freemarker自动生成Java bean代码
            
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                    mybatis中操作元数据
            
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                    mybatis中insert/update/delete标签中执行多条SQL语句
            
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                    springboot集成mybatis-plus框架
            
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                    【分布式】sharding-jdbc实现分库分表
            
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                    SQL常用使用
            
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                    redis学习笔记
            
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                    Redis中的队列list实现秒杀活动抢购
            
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                    mysql绿色版安装服务教程
            
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                    H2内嵌数据的使用
            
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                    缓存
            
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                    MySQL单表备份还原
            
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                    web简单积累
            
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                    linux常用命令
            
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                    windows常用命令
            
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        <li class="header">【第八章】错误集</li>
        
        
    
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                    maven引入依赖时识别不到本地仓库的jar
            
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                    spring security 配置发生错误 Can't configure antMatchers after anyRequest
            
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                    AOP内获取了对请求流操作后报流已经关闭错误的问题
            
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        <li class="chapter " data-level="26.1" data-path="../tools/github/github_ssh.html">
            
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                    Github ssh key 解决提交后push频繁输入用户名和密码
            
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                    sharding-jdbc-4.1.1版本启动数据源报错问题
            
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<h5 id="&#x5206;&#x4EE3;&#x56DE;&#x6536;&#x65B9;&#x5F0F;"><a name="&#x5206;&#x4EE3;&#x56DE;&#x6536;&#x65B9;&#x5F0F;" class="anchor-navigation-ex-anchor" href="#&#x5206;&#x4EE3;&#x56DE;&#x6536;&#x65B9;&#x5F0F;"><i class="fa fa-link" aria-hidden="true"></i></a><strong>&#x5206;&#x4EE3;&#x56DE;&#x6536;&#x65B9;&#x5F0F;</strong></h5>
<p>   <strong>&#x5206;&#x4EE3;&#x56DE;&#x6536;</strong>&#x662F;&#x5783;&#x573E;&#x56DE;&#x6536;&#x4E2D;&#x7684;&#x4E00;&#x79CD;&#x5E38;&#x89C1;&#x7B97;&#x6CD5;&#x3002;&#x7279;&#x70B9;&#x662F;&#x628A;&#x5185;&#x5B58;&#x5212;&#x5206;&#x6210;&#x4E0D;&#x540C;&#x7684;&#x4E16;&#x4EE3;&#xFF0C;&#x5206;&#x522B;&#x5BF9;&#x5E94;&#x865A;&#x62DF;&#x673A;&#x4E2D;&#x5B58;&#x6D3B;&#x65F6;&#x95F4;&#x4E0D;&#x540C;&#x7684;&#x5BF9;&#x8C61;&#x3002;&#x5BF9;&#x4E8E;&#x5B58;&#x6D3B;&#x65F6;&#x95F4;&#x4E0D;&#x540C;&#x7684;&#x5BF9;&#x8C61;&#xFF0C;&#x53EF;&#x4EE5;&#x91C7;&#x7528;&#x4E0D;&#x540C;&#x7684;&#x56DE;&#x6536;&#x7B56;&#x7565;&#x3002;    </p>
<p>&#x200B;    &#x5BF9;&#x4E8E;&#x5305;&#x542B;&#x5B58;&#x6D3B;&#x65F6;&#x95F4;&#x8F83;&#x77ED;&#x7684;&#x5BF9;&#x8C61;&#x7684;&#x5185;&#x5B58;&#x7A7A;&#x95F4;&#xFF0C;&#x5176;&#x4E2D;&#x6240;&#x5305;&#x542B;&#x7684;&#x5B58;&#x6D3B;&#x5BF9;&#x8C61;&#x8F83;&#x5C11;&#xFF0C;&#x53EF;&#x4EE5;&#x88AB;&#x56DE;&#x6536;&#x7684;&#x533A;&#x57DF;&#x6BD4;&#x8F83;&#x591A;&#xFF0C;&#x800C;&#x4E14;&#x72B6;&#x6001;&#x53D8;&#x5316;&#x6BD4;&#x8F83;&#x5FEB;&#xFF0C;&#x56E0;&#x6B64;&#x5BF9;&#x8FD9;&#x4E2A;&#x4E16;&#x4EE3;&#x7684;&#x5185;&#x5B58;&#x8FDB;&#x884C;&#x56DE;&#x6536;&#x7684;&#x9891;&#x7387;&#x6BD4;&#x8F83;&#x9AD8;&#xFF0C;&#x901F;&#x5EA6;&#x8F83;&#x5FEB;&#x3002;&#x800C;&#x5BF9;&#x4E8E;&#x5B58;&#x6D3B;&#x65F6;&#x95F4;&#x6BD4;&#x8F83;&#x957F;&#x7684;&#x5BF9;&#x8C61;&#xFF0C;&#x56DE;&#x6536;&#x7684;&#x9891;&#x7387;&#x53EF;&#x4EE5;&#x6BD4;&#x8F83;&#x4F4E;&#x3002;       </p>
<p>&#x200B;    &#x5728;HotSpot&#x865A;&#x62DF;&#x673A;&#x4E2D;&#xFF0C;&#x628A;&#x5185;&#x5B58;&#x5212;&#x5206;&#x4E3A;3&#x4E2A;&#x4E16;&#x4EE3;&#xFF1A;<strong>&#x5E74;&#x8F7B;</strong>&#x3001;<strong>&#x5E74;&#x8001;</strong>&#x3001;<strong>&#x6C38;&#x4E45;</strong>&#x3002;</p>
<p>&#x200B;    &#x5927;&#x90E8;&#x5206;&#x5BF9;&#x8C61;&#x6240;&#x9700;&#x5185;&#x5B58;&#x7684;&#x5206;&#x914D;&#x90FD;&#x662F;&#x5728;<strong><em>&#x5E74;&#x8F7B;&#x4EE3;</em></strong>&#x533A;&#x57DF;&#x8FDB;&#x884C;&#x7684;&#x3002;</p>
<p>&#x200B;    &#x5F53;&#x5783;&#x573E;&#x56DE;&#x6536;&#x5668;&#x8FD0;&#x884C;&#x65F6;&#xFF0C;<strong>&#x5E74;&#x8F7B;&#x4EE3;</strong>&#x4E2D;&#x7684;&#x5F88;&#x591A;&#x5BF9;&#x8C61;&#x53EF;&#x80FD;&#x5DF2;&#x7ECF;&#x4E0D;&#x518D;&#x5B58;&#x6D3B;&#xFF0C;&#x53EF;&#x4EE5;&#x76F4;&#x63A5;&#x88AB;&#x56DE;&#x6536;&#x3002;</p>
<p>&#x200B;    &#x800C;&#x6709;&#x4E9B;&#x5BF9;&#x8C61;&#x53EF;&#x80FD;&#x4ECD;&#x7136;&#x5904;&#x4E8E;&#x5B58;&#x6D3B;&#x72B6;&#x6001;&#x3002;&#x67D0;&#x4E9B;&#x5BF9;&#x8C61;&#x53EF;&#x80FD;&#x7ECF;&#x8FC7;&#x82E5;&#x5E72;&#x4E2A;&#x5783;&#x573E;&#x56DE;&#x6536;&#x64CD;&#x4F5C;&#x540E;&#xFF0C;&#x4ECD;&#x7136;&#x5904;&#x4E8E;&#x5B58;&#x6D3B;&#x72B6;&#x6001;&#xFF0C;&#x5BF9;&#x4E8E;&#x8FD9;&#x4E9B;&#x5BF9;&#x8C61;&#xFF0C;&#x5783;&#x573E;&#x56DE;&#x6536;&#x5668;&#x4F1A;&#x628A;&#x8FD9;&#x4E9B;&#x5BF9;&#x8C61;&#x79FB;&#x52A8;&#x5230;<strong>&#x5E74;&#x8001;&#x4EE3;</strong>&#x7684;&#x5185;&#x5B58;&#x533A;&#x57DF;&#x3002;</p>
<p>&#x200B;    <strong>&#x6C38;&#x4E45;&#x4EE3;</strong>&#x4E2D;&#x5305;&#x542B;&#x7684;&#x662F;java&#x865A;&#x62DF;&#x673A;&#x81EA;&#x8EAB;&#x8FD0;&#x884C;&#x6240;&#x9700;&#x7684;&#x5BF9;&#x8C61;&#x3002;   </p>
<p>&#x200B;    </p>
<p>&#x200B;    <strong>&#x5E74;&#x8F7B;&#x4EE3;</strong>&#x6709;&#x5212;&#x5206;&#x4E3A;&#xFF1A;&#x4E00;&#x4E2A;&#x4F0A;&#x7538;&#x56ED;(<strong>eden)</strong>&#x3001;&#x4E24;&#x4E2A;&#x5B58;&#x6D3B;&#x533A;(<strong>survivor</strong> space)&#x3002;       </p>
<p>&#x200B;    &#x5927;&#x90E8;&#x5206;&#x5185;&#x5B58;&#x5206;&#x914D;&#x90FD;&#x662F;&#x5728;&#x4F0A;&#x7538;&#x56ED;(<strong>eden</strong>)&#x4E2D;&#x8FDB;&#x884C;&#x7684;&#xFF0C;&#x7531;&#x4E8E;&#x4F0A;&#x7538;&#x56ED;&#x7684;&#x5185;&#x5B58;&#x7A7A;&#x95F4;&#x8F83;&#x5C0F;&#xFF0C;&#x56E0;&#x6B64;&#x67D0;&#x4E9B;&#x6240;&#x9700;&#x5185;&#x5B58;&#x8F83;&#x5927;&#x7684;&#x5BF9;&#x8C61;&#x65E0;&#x6CD5;&#x76F4;&#x63A5;&#x5728;&#x4F0A;&#x7538;&#x56ED;&#x4E2D;&#x8FDB;&#x884C;&#x5206;&#x914D;&#xFF0C;&#x800C;&#x76F4;&#x63A5;&#x5728;&#x5E74;&#x8001;&#x4EE3;&#x4E2D;&#x8FDB;&#x884C;&#x3002;   </p>
<p>&#x200B;    &#x4E24;&#x4E2A;&#x5B58;&#x6D3B;&#x533A;(<strong>survivor</strong>   space)&#x4E2D;&#x603B;&#x6709;&#x4E00;&#x4E2A;&#x662F;&#x7A7A;&#x767D;&#x7684;&#xFF0C;&#x5728;&#x5BF9;&#x5E74;&#x8F7B;&#x4EE3;&#x8FDB;&#x884C;&#x5783;&#x573E;&#x56DE;&#x6536;&#x65F6;&#xFF0C;&#x5148;&#x628A;&#x4F0A;&#x7538;&#x56ED;&#x4E2D;&#x7684;&#x5B58;&#x6D3B;&#x5BF9;&#x8C61;&#x590D;&#x5236;&#x5230;&#x5F53;&#x524D;&#x7A7A;&#x767D;&#x7684;&#x5B58;&#x6D3B;&#x533A;&#x4E2D;&#xFF0C;&#x63A5;&#x7740;&#x5BF9;&#x53E6;&#x4E00;&#x4E2A;&#x975E;&#x7A7A;&#x767D;&#x7684;&#x5B58;&#x6D3B;&#x533A;&#x4E2D;&#x7684;&#x5B58;&#x6D3B;&#x5BF9;&#x8C61;&#x8FDB;&#x884C;&#x5904;&#x7406;&#x3002;</p>
<p>&#x200B;    &#x5982;&#x679C;&#x5BF9;&#x8C61;&#x7684;&#x5B58;&#x6D3B;&#x65F6;&#x95F4;&#x8F83;&#x77ED;&#xFF0C;&#x90A3;&#x4E48;&#x540C;&#x6837;&#x5C06;&#x5176;&#x590D;&#x5236;&#x5230;&#x7A7A;&#x767D;&#x7684;&#x5B58;&#x6D3B;&#x533A;&#x4E2D;&#xFF1B;&#x5982;&#x679C;&#x5BF9;&#x8C61;&#x7684;&#x5B58;&#x6D3B;&#x65F6;&#x95F4;&#x8F83;&#x957F;&#xFF0C;&#x5219;&#x590D;&#x5236;&#x5230;&#x5E74;&#x8001;&#x4EE3;&#x533A;&#x57DF;&#x3002;&#x5728;&#x590D;&#x5236;&#x5230;&#x7A7A;&#x767D;&#x7684;&#x5B58;&#x6D3B;&#x533A;&#x8FC7;&#x7A0B;&#x4E2D;&#xFF0C;&#x5982;&#x679C;&#x53D1;&#x73B0;&#x8BE5;&#x5B58;&#x6D3B;&#x533A;&#x5DF2;&#x7ECF;&#x6EE1;&#x4E86;&#xFF0C;&#x90A3;&#x4E48;&#x5C06;&#x5176;&#x590D;&#x5236;&#x5230;&#x5E74;&#x8001;&#x4EE3;&#x533A;&#x57DF;&#x3002;&#x7ECF;&#x8FC7;&#x8FD9;&#x4E24;&#x6B21;&#x590D;&#x5236;&#x540E;&#xFF0C;&#x5C31;&#x53EF;&#x4EE5;&#x628A;&#x4F0A;&#x7538;&#x56ED;&#x548C;&#x975E;&#x7A7A;&#x767D;&#x7684;&#x5B58;&#x6D3B;&#x533A;&#x4E2D;&#x7684;&#x5185;&#x5BB9;&#x76F4;&#x63A5;&#x5168;&#x90E8;&#x6E05;&#x7A7A;&#xFF0C;&#x56E0;&#x4E3A;&#x8FD9;&#x4E24;&#x4E2A;&#x533A;&#x57DF;&#x4E2D;&#x7684;&#x5BF9;&#x8C61;&#x8981;&#x4E48;&#x4E0D;&#x518D;&#x5B58;&#x6D3B;&#xFF0C;&#x8981;&#x4E48;&#x5DF2;&#x590D;&#x5236;&#x5230;&#x5176;&#x4ED6;&#x5185;&#x5B58;&#x533A;&#x57DF;&#x4E2D;&#x3002;   </p>
<p>&#x200B;    &#x5728;&#x5B8C;&#x6210;&#x5783;&#x573E;&#x56DE;&#x6536;&#x540E;&#xFF0C;&#x4E0B;&#x4E00;&#x6B21;&#x7684;&#x5185;&#x5B58;&#x5206;&#x914D;&#x53EF;&#x4EE5;&#x7EE7;&#x7EED;&#x4ECE;&#x7A7A;&#x767D;&#x7684;&#x4F0A;&#x7538;&#x56ED;&#x5F00;&#x59CB;&#x8FDB;&#x884C;&#xFF0C;&#x800C;&#x4E24;&#x4E2A;&#x5B58;&#x6D3B;&#x533A;&#x7684;&#x4F5C;&#x7528;&#x4E5F;&#x53D1;&#x751F;&#x4E86;&#x4EA4;&#x6362;&#x3002;   </p>
<p>&#x5BF9;&#x4E8E;&#x5E74;&#x8001;&#x4EE3;&#x548C;&#x6C38;&#x4E45;&#x4EE3;&#x5185;&#x5B58;&#x533A;&#x57DF;&#xFF0C;&#x901A;&#x5E38;&#x91C7;&#x7528;&#x7684;&#x662F;&#x53E6;&#x4E00;&#x79CD;&#x56DE;&#x6536;&#x7B97;&#x6CD5;: <strong>&#x6807;&#x8BB0;&#x6E05;&#x9664;&#x538B;&#x7F29;&#x7B97;&#x6CD5;</strong>&#x3002;</p>
<h5 id="&#x6807;&#x8BB0;&#x6E05;&#x9664;&#x538B;&#x7F29;&#x7B97;&#x6CD5;"><a name="&#x6807;&#x8BB0;&#x6E05;&#x9664;&#x538B;&#x7F29;&#x7B97;&#x6CD5;" class="anchor-navigation-ex-anchor" href="#&#x6807;&#x8BB0;&#x6E05;&#x9664;&#x538B;&#x7F29;&#x7B97;&#x6CD5;"><i class="fa fa-link" aria-hidden="true"></i></a><strong>&#x6807;&#x8BB0;&#x6E05;&#x9664;&#x538B;&#x7F29;&#x7B97;&#x6CD5;</strong></h5>
<p>   <strong>&#x6807;&#x8BB0;&#x6E05;&#x9664;&#x538B;&#x7F29;&#x7B97;&#x6CD5;</strong>&#x5206;&#x4E3A;&#x4E09;&#x4E2A;&#x6B65;&#x9AA4;&#xFF1A;&#x6807;&#x8BB0;(mark)&#x3001;&#x6E05;&#x9664;(sweep)&#x3001;&#x538B;&#x7F29;(compact).   </p>
<p>&#x200B;    &#x7B2C;&#x4E00;&#x4E2A;&#x6B65;&#x9AA4;&#x7684;&#x4F5C;&#x7528;&#x662F;&#x626B;&#x63CF;&#x6574;&#x4E2A;&#x5185;&#x5B58;&#x533A;&#x57DF;&#xFF0C;&#x628A;&#x5F53;&#x524D;&#x4ECD;&#x7136;&#x5B58;&#x6D3B;&#x7684;&#x5BF9;&#x8C61;<strong>&#x6807;&#x8BB0;</strong>&#x51FA;&#x6765;&#xFF1B;   </p>
<p>&#x200B;    &#x7B2C;&#x4E8C;&#x4E2A;&#x6B65;&#x9AA4;&#x7684;&#x4F5C;&#x7528;&#x5219;&#x662F;&#x6E05;&#x7406;&#x5185;&#x5B58;&#x533A;&#x57DF;&#xFF0C;<strong>&#x6E05;&#x9664;</strong>&#x5783;&#x573E;&#xFF1B;   </p>
<p>&#x200B;    &#x7B2C;&#x4E09;&#x4E2A;&#x6B65;&#x9AA4;&#x7684;&#x4F5C;&#x7528;&#x662F;<strong>&#x538B;&#x7F29;</strong>&#x6574;&#x4E2A;&#x5185;&#x5B58;&#x533A;&#x57DF;&#xFF0C;&#x628A;&#x5B58;&#x6D3B;&#x5BF9;&#x8C61;&#x6240;&#x5360;&#x7684;&#x5185;&#x5B58;&#x90FD;&#x79FB;&#x52A8;&#x5230;&#x5185;&#x5B58;&#x533A;&#x57DF;&#x7684;&#x8D77;&#x59CB;&#x4F4D;&#x7F6E;&#xFF0C;&#x4F7F;&#x5185;&#x5B58;&#x4E2D;&#x53EF;&#x7528;&#x533A;&#x57DF;&#x662F;&#x8FDE;&#x7EED;&#x7684;&#x3002;   </p>
<p>&#x200B;    &#x7ECF;&#x8FC7;&#x538B;&#x7F29;&#x540E;&#xFF0C;&#x5728;&#x5E74;&#x8001;&#x4EE3;&#x548C;&#x6C38;&#x4E45;&#x4EE3;&#x4E2D;&#x8FDB;&#x884C;&#x5185;&#x5B58;&#x5206;&#x914D;&#x5C31;&#x53D8;&#x5F97;&#x5F88;&#x5BB9;&#x6613;&#xFF0C;&#x53EA;&#x9700;&#x8981;&#x4ECE;&#x53EF;&#x7528;&#x533A;&#x57DF;&#x7684;&#x5F00;&#x5934;&#x4F4D;&#x7F6E;&#x8FDB;&#x884C;&#x5206;&#x914D;&#x5373;&#x53EF;&#x3002;   </p>
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